Biosphere 2 |
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32540 S Biosphere Rd Tucson, AZ 85623(520) 838-6200 |
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Built in the late 1980s, Biosphere 2 was designed as an airtight replica of Earth’s environment, which is Biosphere 1. Twenty minutes north of Tucson on Highway 77, the 200,000-cubic-foot sealed glass and metal framed structure contains a 900,000-gallon ocean, a rain forest, a desert, an agricultural area and a human habitat.
Open daily 9:00 a.m. - 4:00 p.m.
Adults $20; Seniors (62+) $18; Children (6-12) $13; Children under 5 are free.



